Hello. After taking apart my old laptop, I have two questions regarding what to do with the GPU and CPU before putting the fan/heat sink back in.
First, the CPU contact point on the heat sink had a square foil that peeled up and has a tear in it. I am not sure if I should try to remove the foil square and goop underneath and apply thermal paste directly to the copper, or whether there is another way to fix it. (Attached picture #1)
Second, the GPU had a blue soft square between it and the contact point under the fan. This also ripped apart as I thought it was supposed to be replaced with the thermal paste. (Attached picture #2). I am not sure if it is okay to simply use thermal paste now, or if I need to use what the blue square was made of.
I appreciate any ideas or help with this. I was attempting to save money by simply bringing in the motherboard to be soldered, however I may have underestimated the reassembly process. It is a very old laptop, and it will be some time before I can replace it. Thank you for taking a look!